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AVS30D Automatic Voltage Switch is a complete power protection device combining over-voltage, under-voltage, lightening and spike/surge protection for your appliances and electronics. Also guards against surges and spikes that may occur when power is restored. Hard-wired directly into home or office wiring, the AVS30D safeguards refrigerators, freezers, air conditioners, washers, dryers, TV's and computer equipment from fluctuating power.

Program buttons let you quickly set voltage range, on/off delay, overload protection and digital display mode, The easy to read digital LED displays show you voltage, wattage, settings and status at a glance, The AVS30D features surge protecting components to guard against spikes and surges.